Email Services

CounterMail

CTemplar

Kolab Now

Mailbox.org

MailFence

Namecheap (They host business emails.)

Posteo

ProtonMail (One Proton account can access both the VPN and ProtonMail.)

Runbox

Soverin

Startmail

Thexyz

Thunderbird

Tutanota

Vivaldi (web browser that includes email)

Zoho (They also have a Notepad alternative.)